The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2020
Filed:
Jun. 21, 2017
Applicant:
Doosan Heavy Industries & Construction Co., Ltd., Changwon-si, Gyeongsangnam-do, KR;
Inventors:
Jung June Lee, Incheon, KR;
Sung Won Park, Goyang-si, KR;
Assignee:
Doosan Heavy Industries Construction Co., Ltd, Gyeongsangnam-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 24/12 (2006.01); B01D 24/40 (2006.01); B01D 24/48 (2006.01); B01D 29/56 (2006.01); B01D 29/60 (2006.01); B01D 36/02 (2006.01); B01D 39/02 (2006.01); B01D 39/04 (2006.01); C02F 1/00 (2006.01); B01D 24/46 (2006.01); B01D 29/58 (2006.01); B01D 29/66 (2006.01); B01D 35/10 (2006.01);
U.S. Cl.
CPC ...
B01D 29/601 (2013.01); B01D 24/12 (2013.01); B01D 24/40 (2013.01); B01D 24/4652 (2013.01); B01D 24/4853 (2013.01); B01D 29/56 (2013.01); B01D 29/58 (2013.01); B01D 29/661 (2013.01); B01D 35/10 (2013.01); B01D 36/02 (2013.01); B01D 39/02 (2013.01); B01D 39/04 (2013.01); C02F 1/004 (2013.01); C02F 1/008 (2013.01); B01D 2201/087 (2013.01); B01D 2201/186 (2013.01); C02F 2209/11 (2013.01);
Abstract
The present invention relates to a multistage fiber filtering apparatus capable of selectively filtering depending on turbidity of raw water, in which a first filtration mode where the raw water passes through a fiber ball medium, a second filtration mode where the raw water passes through a fiber yarn medium, or a third filtration mode where the raw water passes through both of the fiber yarn medium and the fiber ball medium may be selectively operated.